Intelligent Low Voltage Reactive Power Compensation Cabinet
Product Description
Our Intelligent Low Voltage Reactive Power Compensation Cabinet is designed to improve power factor, reduce line losses, and stabilize voltage in industrial and commercial distribution systems. The cabinet integrates intelligent reactive power controllers, capacitor banks, contactors or thyristor switching modules, and protection devices in a single enclosure, automatically detecting system reactive power demand and switching capacitor stages in or out to maintain the target power factor. The intelligent controller monitors voltage, current, power factor, and harmonic content in real time, ensuring optimal compensation under varying load conditions and preventing over-compensation or under-compensation. By improving power factor, customers reduce reactive power charges from utilities, lower distribution losses, and free up transformer and cable capacity. This cabinet is essential for factories with large motor loads, welding equipment, or variable frequency drives that generate significant reactive power demand.
Yuanzhuo Electrical Equipment manufactures intelligent reactive power compensation cabinets with capacitor banks and controllers from trusted brands. Our 12,000 m² facility with five automated production lines and an annual capacity of 10,000 units supports custom configurations. Our engineering team assists with compensation capacity calculation and harmonic analysis. Each cabinet undergoes 100% powered testing, including controller calibration and switching sequence verification, before wooden-crate packaging. We support drawing-based manufacturing with lead times of three weeks to one month.
Specifications
|
Parameter |
Specification |
|
Product Type |
Intelligent LV Reactive Power Compensation Cabinet |
|
Rated Voltage |
AC 400V (690V available) |
|
Compensation Capacity |
50kvar – 600kvar (customizable, multi-stage) |
|
Control Mode |
Intelligent automatic controller (power factor target settable) |
|
Switching Device |
AC contactor or thyristor module (per spec) |
|
Capacitor Type |
Self-healing low-voltage shunt capacitor |
|
Protection |
Overvoltage, undervoltage, over-temperature, harmonic overload |
|
Enclosure |
Steel structure, powder-coated |
|
Protection Grade |
IP30 (IP40 available) |
|
Component Brands |
Schneider, Siemens, Chint, Delixi (per spec) |
|
Custom Options |
Capacity, stages, switching type, dimensions, branding |
Applications
Industrial Plants with Heavy Motor Loads
Compensates reactive power generated by large motors, compressors, and pumps in factories, reducing utility demand charges and improving overall energy efficiency.
Facilities with Welding and VFD Equipment
Stabilizes voltage and compensates reactive power in facilities with welding machines, variable frequency drives, and other nonlinear loads that cause power factor degradation and voltage fluctuations.
Commercial Buildings and Data Centers
Improves power factor for HVAC systems, lighting, and UPS loads in commercial buildings and data centers, reducing energy costs and ensuring compliance with utility power factor requirements.
Customization
Customization includes total compensation capacity, number and size of capacitor stages, switching device type (contactor or thyristor), controller brand and features, harmonic filtering options (reactor-based), protection configuration, enclosure dimensions, surface color, and customer branding. Our engineering team provides compensation capacity calculation based on your load profile.
Packaging & Transportation
Each cabinet is film-wrapped and packed in a wooden crate with internal anti-collision padding. We support FOB to a designated Chinese port and EXW. Payment: 40% deposit, 80% after pre-shipment inspection, full balance at the designated Chinese port. Currencies: USD, EUR, RMB.
FAQ
Q1: How do you determine the required compensation capacity?
A: Our engineering team calculates the required compensation capacity based on your load profile, transformer rating, current power factor, and target power factor. We can design a custom multi-stage configuration to match your specific requirements.
Q2: Can you manufacture compensation cabinets to our specifications?
A: Yes. We produce according to customer-provided technical specifications, single-line diagrams, or layout drawings, with engineering confirmation before production.
Q3: What testing do you perform before shipment?
A: Every cabinet undergoes powered testing, controller calibration, capacitor switching sequence verification, and protection function testing. We perform 100% inspection and accept third-party inspections.
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